Manure-spreader.



D. K. WILSON.

MANURB SPREADER.

APPLICATION FILED JAN. 21, lacs.

Patented Nov.3, 1908.

.QK. M9522? WITNESSES:

outrun STATES PAT a DALTON- K. WILSON, WATERLOO, IOWA.

' MANUItE-SPBEADER.

Specification of Letters Patent.

PatentedNov. 3, 1908.

Application filed January 21, 1908. Serial No. 411,931.

To all whom it may concern:

Be it known that I, DALTON K. \VILSoN,

' a citizen of the United States of America,

ient means for driving the conveyor apron,

and for keeping up a proper adjusted engagement between the driving'and holding pawls and the driving ratchet-wheel. This object I have accomplished by the 'means which are hereinafter fully described and claimed, and which are illustrated in the drawings hereto. annexed, in which Figure 1 is a side elevation of the wagonbox of a manure spreadeiyequipped with my improved mechanism for driving the conveyor-apron, and Fig. 2- is an enlarged detail upper plan view of the driving pawl of the shaft 7 of the beater-drum 1.

and its prolongations.

Similar numbers refer to similar parts throughout the several views. The wagon-box. 28 contains a movable conveyor-apron 35, driven by sprockets 34; on a transverse shaft 21 in the usual manner, and passing about an idler 36 at the front of the box.

Brackets 30 are secured to the rear part of said box, havings bearings for the ends A camwheel 8 is secured to the end of the shaft 7 and a ratchet-wheel 22 to the end of the shaft 21 on same side of the box. Between said cam-wheel and said ratchet-wheel are certaln drivmg connections and pawls descrlbed as follows:

An angular arm 4 is pivotally suspended on a stud 3 extending laterally from theupper projection 2 of the bracket 30, the lower end of the said arm having a pivotal connection 9 with the rear member 10 of the driving-pawl 18. This driving-pawl 18 is a cross-piece joining the forward ends of the parallel forks 33 and 37 of the rear member 10, the parallel portions passing-on either side of the ratchet-wheel 22g An anti-friction wheel 5 is rotatably mounted on a stud 6 projecting inward from the angle of the arm 4, and its concave edge is adapted to be contacted with by the convex edge of the cam-wheel 8. The numeral 32 designates an arm which is curved upwardly from the member 10. i A stud 15 extends laterally bracket 30, and on this stud are pivoted two bell-crank levers, the ou'terone having an 1-l and a lower member 16.

A lug 19 extends outward from the-outer side of the fork-member 37, and hes 1n the member 17 ofthe outer bell-crank lever.

the same lever is perforated from front to rear to receive the connecting-rod 23, the forward end of the latter being .pivotally connected to a hand-lever 24: whose lower end is pivoted on. a stud 26 extending from a plate 27 securedto the forward part of the side of the wagon-box 28. The rear end of the connecting-rod 23 is passed througha staple 12 extending from the box 28. A clip or open boxing 11 has its ends slidably secured about the rear end 0f the rod 23, one end on either side of the staple 12, and a spiral spring 31 secured about said rod between the forward end of said boxing and the said staple 12. I v

The upper end of-the'upper member 14; of the inner bell-crank lever is connected with the upper end of the projecting member '32 of the driving-pawl body by means of a tension-spring 29. The lower end of the lower member 16 of said inner lever is pivotally' connected to a double ended guard or holding-pawl 20, the detents of the latter being so suspended over the ratchet-wheel teeth, that when one detent is in full engagement with a tooth of said ratchet-wheel, the other detent is spaced away from the root of 'the contacting teeth to the extent of a space of one-half a tooth. In operation, the rotating cam-wheel 8 imparts by its driving contact with the antifriction. wheel 5, a reciprocating motion to the swinging-arm 1 and its connected driving-pawl body 10. The cross-bar pawl 18 thus contacts with and drives the teeth of the ratchet-wheel 22 around. v The resilient connection 29 between the members 14 of the inner bell-crank lever and the member 32 of the driving-pawl body, keeps either one or the other of. the detents of the suspended holding-pawl 20 in full engagement with the teeth of the ratchetwheel 22, whether the said driving-pawl be in its forward or back position, and affords from the forward upper portion of theupper member 13 and a lower member 17,- while the inner lever has an upper member path of movement of the lower end of the The upper end of the upper member 13 of 7 compensation when the crossbar has become ,u on the member 13 of the outer bell-crank level, due to'the inclosed'spring 31." The: moving forward'ofrt-he member 13 causes av rearward movement of the memberl'Z, causing the latter to contact'with and push back the lug 19 on the -sideebar 37 of the driving-- .pawl body thusirestrictingthe throw ofthe -pawli-18,- and decreasing the speed of-rota-j" tion' ofLthe ratchet-Wheel 22 and the honveyer chain. 35. "When thehand lever is moved inth'e' other direction, by] the same intermediate meansthe lower member 17 is drawn forward; permittin the drivingpawl tohave arlonger stroke, t usincreasingthed sipeedfof "movement .of the. conyeyer-apron,

the pawl118 1s limited infits stroke by 25.

-stroke the, aboye means, so that when at its shortest 1t is-pushed farthest bac'k,-the anti-.

' friction .Whel "5 isswung back-enoughcso that it is contact'ed at -each revolution" by only asm'all part of the ede ofthe angular mg bu'tra short driving stroke, whichat the;

Ip'art' .ofjthe cam-wheel 8, t e latter exercisextreme is less than a tooths'widthon the 1 ratchet-wheel, causing cessation. of motionto' sa id'wheel. v Havingfdescribed my inventipn, what I claim asnew,'-and desire to secure by Letters}- Patent, is

1 In ja manure' spreader, in: combination, l

a wagon gbox, a movable conveye'r -'apron therein, a rotatable shaft, a cam-wheel secured 1 to said shaft, a ratchet wheel-adapted to drive said movable a ron, a swinging arm adapted- I to be' contacted by said cam'-whee1,a driving-'- driving-pawl;

-. pawl 'pivotally connected to said'swinging wheel, said. drivin'g pawl having a laterally} "arm and. adapted to engage; said ratchet- "extending" lug, and means adjnstably inter;

posed in the; path-.ofmovement' of said lug. adapted to limit the length'of stroke of sai 2. In a manure-spreader, in combination,

a wagon box, a a movable 'c'onveyer apron therein, a rotatable shaft, a camwvhe'el se-v c'ured to said shaft, a ratchet-wheel adapted to drivesaid conveyer-aprom' as'winging arm adapted-tobe contacted by; said camwheel, a driving-pawl bivotally connected to I said swinging-arm a'ndadapted to engage said ratchet-wheel, said driving-pawl having.

a laterally extending lug andan'upwardly 6'0" extending arm, means adjustably interposed in thepat'h'lof movement of said 111 adapted to-'li it the length stroke. of said driving ipawl, a bell-crank lever whose upper end extending arm ofsaid"driving-pawl, and a holding-pawl .m'edially and" pivotally' suspended. from the lower member of said bell} I drank levenfs'aid' holding-pawl having a de-v ;tent -at each end,"such detents so Jen aged ,with the teeth ofsaid' ifatchetwhee that 'iwhenever one detent" engages the root oft-a tooth the-other detnt :en ages another tooth to av distanceof one-.halg the length of the,

extending lag, an resilient means adjust-' d ably inter 'osed in the path of movement of said lug a pt'ed to limit the length of stroke" a wagon box, movable conveyerj-apron therein, a rotatable shaft, a cam-wheel .secured to said shaft, a ratchet-wheel adapted to drive said conveyerapron, a swinging, arm, an anti f-rictibn wheel pivoted to said ,'95r" swinging arm and adapted to be'contacted by 'said;cam-whe.l,-a holding-pawl adapted to engage said.'ratchet-wheel, a' drivingpawl a .pivotally connected to saidf-swinging arm and adapted to. engage said "ratchet-wheel, said drivin -pawliha'vmg a laterally extending lug, and means adjustably interposed-1n the path of-movement-of said lug-adapted to limit 1 the length of stroke of said driving pawl. I, j "Signed at Waterloo, Iowa, this- 31st day. of Dec'. l9 07-.

1 DALTON Kwmson'.

Witne sses O. D. YOUNG, Y

- G. G. KENNEDY.

hm. resilient .conne ctionwith the upwardly 6 5 wheel, said drlvin -pawl having a. laterally .85

of said'driving-pawl. 3 L 4} a manure spreader,in combmatlon, '90 

